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Debian 10: DLA-3564-1 Severe: e2guardian MITM Vulnerability

debian lts
Calendar Grey September 12, 2023
Dist Debian Esm H88
An important e2guardian patch resolves a man-in-the-middle security issue in Debian LTS. It's advised to install this upgrade to address various vulnerabilities.
It was discovered that there was a potential Man In the Middle (MITM) vulnerability in e2guardian, a web content filtering engine
Topics%20covered

Topics Covered

security advisory update Debian MITM e2guardian

Summary

Validation of SSL certificates was missing in e2guardian's own MITM
prevention engine. In standalone mode (ie. acting as a proxy or a
transparent proxy) with SSL MITM enabled, e2guardian did not validate
hostnames in certificates of the web servers that it connected to,
and thus was itself vulnerable to MITM attacks.

For Debian 10 buster, this problem has been fixed in version
5.3.1-1+deb10u1.

We recommend that you upgrade your e2guardian packages.

For the detailed security status of e2guardian please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/source-package/e2guardian

Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS



Package: e2guardian
Version: 5.3.1-1+deb10u1
CVE ID: CVE-2021-44273
Debian Bug: 1003125

Topics%20covered

Topics Covered

security advisory update Debian MITM e2guardian

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